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If at a pressure of 10^(6) dyne//cm^(2),...

If at a pressure of `10^(6) dyne//cm^(2)`, one gram mole of nitrogen occupies `2xx10^(4)` cc volume, the calculate the average energy of a nitrogen molecules in erg.(Given avogadro's number `=6xx10^(23))`

A

`14xx10^(-13)`

B

`10xx10^(-12)`

C

`10^(6)`

D

`2xx10^(6)`

Text Solution

Verified by Experts

The correct Answer is:
A
Average `KE =(1)/(2)mV^(2)_(rms)=(1)/(2)m(3p)/(p)=(1)/(2)(M)/(N)xx(3P)/(p)`
`=(1)/(2)xx(28)/(6xx10^(23))(3xx10^(6))/((1)/(2xx10^(4)))`
`=14xx10^(-13)erg`
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